<!DOCTYPE html>
<html lang="en" class="h-100 ">

<head>
  <meta charset="UTF-8">
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  <title>南京工业大学学生社团管理系统</title>
</head>

<!-- <body class="d-flex h-100 text-center text-white bg-dark"> -->
<!-- <body style="text-align: center;"> -->
<body>
  <!-- 这是容器 -->
  <div id="app"></div>
</body>

</html>